NANOPOWDER ENGINEERING: FROM SYNTHESIS TO SINTERING. THE CASE OF ALUMINA-BASED MATERIALS

Nanostructuration of ceramic materials is a challenging way to improve their performances reliability and lifetime. However, a successful approach to the production of tailored ceramic nanostructures requires the development of innovative concepts at any step of the manufacturing chain, starting from the elaboration and processing of ceramic powders. This review is aimed to collect and discuss the major advancements achieved along this complex path, exploiting some history cases to illustrate the benefits resulting from a nanopowders engineering approach applied to the processing of ceramic powders. Resume La nano-structuration des materiaux ceramiques represente une voie prometteuse d’amelioration de leurs performances. Cependant, le succes dans les approches de fabrication de ceramiques nano-structurees necessite le developpement de concepts innovants a tous les stades de la chaine d’elaboration, des la synthese ou la modification des poudres. Cette revue a pour but de collecter et de discuter des avancements realises dans ce domaine, en illustrant l’interet des approches d’ingenierie des nano-poudres ceramiques. Mots cles : Nanopowder, Sintering, Alumina, Zirconia, Nanocomposites.

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